Source note · Troubleshooting Teams Direct Routing

If no user in a tenant can make outbound calls, Microsoft suggests two checks. First, whether the gateway is disabled: Get-CsOnlinePSTNGateway should show Enabled True, and it can be fixed with Set-CsOnlinePSTNGateway -Enabled $true. Second, whether a firewall is blocking SIP OPTIONS from the Microsoft signaling IPs and FQDNs.

Checked 2026-09-25

Vendor: Microsoft
Product: Microsoft Teams Phone Direct Routing
Subsystem: outbound-calls
Deployment: multi-tenant
Region: not restricted
Release range: current as of 2026-09-25
Checked: 2026-09-25

Sources

Issues with outbound calls - Microsoft Teams — Microsoft · tier 2 current vendor documentation · No users are able to make calls > Cause 1 and Cause 2

Cite this note

APA

WarmTransfer. (2026, September 25). Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-no-users-gateway. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-no-users-gateway

BibTeX

@misc{warmtransfer-claim-teams-direct-routing-troubleshooting-no-users-gateway,
  title  = {Troubleshooting Teams Direct Routing: source note teams-direct-routing-troubleshooting-no-users-gateway},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-direct-routing-troubleshooting-no-users-gateway},
  note   = {Source note teams-direct-routing-troubleshooting-no-users-gateway, checked 2026-09-25}
}

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